241 lines
6.3 KiB
Bash
Executable File
241 lines
6.3 KiB
Bash
Executable File
#!/usr/bin/env sh
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# helper script: build elf files on build systems that use defconfig/kconfig
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#
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# Copyright (C) 2022 Alper Nebi Yasak <alpernebiyasak@gmail.com>
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# Copyright (C) 2022 Ferass El Hafidi <vitali64pmemail@protonmail.com>
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# Copyright (C) 2023 Leah Rowe <leah@libreboot.org>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# you could probably build *linux* with this script!
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[ "x${DEBUG+set}" = 'xset' ] && set -v
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set -u -e
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projectname="$(cat projectname)"
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our_version="$(cat version)"
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export LOCALVERSION="-${projectname}-${our_version}"
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arch=""
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cfgsdir=""
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codedir=""
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config=""
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config_name=""
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crossgcc_ada=""
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elfdir=""
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listfile=""
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project=""
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target=""
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target_dir=""
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tree=""
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main()
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{
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[ $# -lt 1 ] && err "Project name not specified"
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project="${1}"
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elfdir="elf/${project}"
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shift 1
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cfgsdir="resources/${project}"
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[ -d "${cfgsdir}" ] || err "directory, ${cfgsdir}, does not exist"
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listfile="${cfgsdir}/build.list"
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[ -f "${listfile}" ] || err "list file, ${listfile}, does not exist"
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printf "Building %s binaries (elf files)\n" ${project}
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# Build for all targets if no argument is given
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if [ "$#" -eq 0 ]; then
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for target_dir in "${cfgsdir}"/*; do
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[ ! -d "${target_dir}/config/" ] && \
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continue
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set -- "$@" "${target_dir#${cfgsdir}/}"
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done
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fi
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[ ! -d "${elfdir}" ] && \
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mkdir -p ${elfdir}/
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for x in "$@"; do
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target="${x}"
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if [ "${project}" = "coreboot" ]; then
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./update blobs download ${target} || err "blobutil"
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fi
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build_defconfig || exit 1
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done
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printf "Done! The files are stored under %s/\n\n" ${elfdir}
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}
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build_defconfig()
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{
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handle_dependencies "${target}" || return 1
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for y in "${target_dir}/config"/*; do
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[ ! -f "${y}" ] && continue
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config="${y}"
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config_name="${config#$target_dir/config/}"
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printf "build/defconfig/%s %s: build config %s\n" \
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${project} ${target} ${config_name}
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check_config || continue
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build_elf
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copy_elf
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done
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}
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handle_dependencies()
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{
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target_dir="${cfgsdir}/${target}"
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mkdir -p "${elfdir}/${target}"
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tree="undefined"
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arch="undefined"
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[ ! -f "${target_dir}/target.cfg" ] && \
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err "build/${project} ${target}: Missing target.cfg"
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# Override the above defaults using target.cfg
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. "${target_dir}/target.cfg" # source
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[ "${tree}" = "undefined" ] && \
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err "build/${project} %{target}: tree undefined"
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[ "${arch}" = "undefined" ] && \
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err "build/${project} ${target}: undefined cpu type"
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codedir="${project}/${tree}"
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[ -d "${codedir}" ] || \
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./fetch_trees "${project}" "$target" || exit 1
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# u-boot and coreboot are both compiled with coreboot's crossgcc
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if [ "${project}" = "coreboot" ] || [ "${project}" = "u-boot" ]; then
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check_cross_compiler || err "crossgcc fail"
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fi
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}
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# set up cross-compiler (coreboot crossgcc) for u-boot and coreboot
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# (seabios and grub currently use hostcc, not crossgcc)
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check_cross_compiler()
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{
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[ "${crossgcc_ada}" = "y" ] || [ "${crossgcc_ada}" = "n" ] || \
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crossgcc_ada="y"
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[ "${crossgcc_ada}" != "y" ] && \
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export BUILD_LANGUAGES=c
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cbdir="coreboot/${tree}"
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[ "${project}" != "coreboot" ] && \
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cbdir="coreboot/default" # not u-boot (e.g. linux will use it)
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[ "${project}" = "u-boot" ] && \
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cbdir="coreboot/cros" # u-boot only used on coreboot/cros
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# only true if not building coreboot:
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[ -d "${cbdir}" ] || \
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./fetch_trees coreboot ${cbdir#coreboot/} || \
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err "check_cross_compiler"
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if [ "${arch}" = "x86_32" ] || [ "${arch}" = "x86_64" ]; then
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if [ ! -d "${cbdir}/util/crossgcc/xgcc/i386-elf/" ]; then
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# Even for 64-bit machines, coreboot builds 32-bit ROM
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# images, so we only need to worry about i386-elf
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make -C "${cbdir}" crossgcc-i386 CPUS=$(nproc) || \
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return 1
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fi
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case "$(uname -m)" in
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x86*|i*86|amd64) : ;;
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*) export CROSS_COMPILE=i386-elf- ;;
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esac
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elif [ "${arch}" = "ARMv7" ]; then
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if [ ! -d "${cbdir}/util/crossgcc/xgcc/arm-eabi/" ]; then
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make -C "${cbdir}" crossgcc-arm CPUS=$(nproc) || \
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return 1
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fi
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case "$(uname -m)" in
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arm|arm32|armv6*|armv7*) : ;;
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*) export CROSS_COMPILE=arm-eabi- ;;
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esac
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elif [ "${arch}" = "AArch64" ]; then
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if [ ! -d "${cbdir}/util/crossgcc/xgcc/aarch64-elf/" ]; then
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make -C "${cbdir}" crossgcc-aarch64 CPUS=$(nproc) || \
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return 1
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fi
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# aarch64 also needs armv7 toolchain for arm-trusted-firmware
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if [ ! -d "${cbdir}/util/crossgcc/xgcc/arm-eabi/" ]; then
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make -C "${cbdir}" crossgcc-arm CPUS=$(nproc) || \
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return 1
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fi
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case "$(uname -m)" in
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arm64|aarch64) : ;;
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*) export CROSS_COMPILE=aarch64-elf- ;;
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esac
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fi
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# we *must* ensure that u-boot's build system uses crossgcc first
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export PATH="$(pwd)/${cbdir}/util/crossgcc/xgcc/bin:$PATH"
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}
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check_config()
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{
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[ ! -f "${config}" ] && \
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err "build/${project} ${target}: configs missing"
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dest_dir="${elfdir}/${target}/${config_name}"
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for elftest in "${dest_dir}"/*; do
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if [ -f "${elftest}" ]; then
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printf "Build already exists, so skipping build\n" 1>&2
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return 1
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fi
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done
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mkdir -p "${dest_dir}"
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printf "build/%s %s: building config %s).\n" \
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${project} ${target} ${config_name}
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}
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build_elf()
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{
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make -C "${codedir}" distclean || err "build_elf"
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cp "${config}" "${codedir}/.config" || err "build_elf"
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make -C "${codedir}" silentoldconfig || \
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make -C "${codedir}" oldconfig || : # don't error on oldconfig
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[ "${project}" = "coreboot" ] && \
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printf "%s\n" "${our_version}" > "${codedir}/.coreboot-version"
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make -C "${codedir}" -j"$(nproc)" all || err "build_elf"
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}
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copy_elf()
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{
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for f in $(cat "${listfile}"); do
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[ -f "${codedir}/$f" ] && cp "${codedir}/${f}" "${dest_dir}/"
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done
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make -C "${codedir}" distclean || \
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make -C "${codedir}" clean || err "copy_elf"
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}
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err()
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{
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[ -z "${codedir}" ] || \
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make -C "${codedir}" distclean \
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|| make -C "${codedir}" clean || :
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printf "build/defconfig error %s\n" "${1}" 1>&2
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exit 1
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}
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main $@
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